Police said the boy was shot in the back in a possible drive-by shooting at 3:02 p.m. Sunday in the 4600 block of South Cottage Grove Avenue.

He was taken to Comer Children's Hospital in critical condition from near 47th Street and Cottage Grove Avenue, said Chicago Fire Department spokesman Chief Juan Hernandez. He was pronounced dead at the hospital at 6:11 p.m., according to the Cook County medical examiner's office.

At about 6:13 p.m. am 18-year-old man was shot on the 6900 block of South South Shore Drive in the South Shore neighborhood, according to Chicago Police Department News Affairs Sergeant Antoinette Ursiti.

The man was walking when two people came up to him and shot him multiple times, police said, citing preliminary information. He was taken to Northwestern Memorial Hospital in critical condition.

In a West Side shooting Sunday evening, an 18-year-old man was shot about 6:25 p.m. on the 3900 block of West Polk Street in the Lawndale neighborhood. The man was taken to John H. Stroger, Jr. Hospital of Cook County, where he was listed in critical condition, officials said.

Three people were shot about 6:40 p.m. Sunday on the 7000 block of South East End Avenue in South Shore, police said. A 23-year-old man was shot in the right leg and two 22-year-old men were also shot in the leg, according to police. They were taken to area hospitals for treatment, police said.

In later shootings:

• A 26-year-old man was shot about 10:25 p.m. near the intersection of West 65th Street and South Union Avenue in the Englewood neighborhood on the South Side. Police said the man showed up at St. Bernard Hospital Hospital and Health Care Center with a gunshot wound to the hand and is listed in good condition.

• A 20-year-old man was shot about 9:45 p.m. in the 7400 block of South Harvard Avenue in Englewood, police said. The man was standing outside near a car when someone started shooting, hitting him in the arm, the groin and the hip, police said. He fled to a nearby home, called police and was taken soon after to Advocate Christ Medical Center in Oak Lawn.